What are the reasons for poor fuel combustion?
3 Answers
Reasons for poor fuel combustion are as follows: 1. Poor fuel quality: The performance indicators of the fuel used do not meet standard requirements, leading to poor combustion and the production of black smoke. Additionally, inferior fuel quality can damage the fuel filter, causing the internal fuel to deteriorate, which results in black smoke emissions. 2. Blocked air intake: The fuel tank is not sealed, and prolonged exposure to air can inevitably lead to impurities and dust from the air entering the air filter. These particles can block the air intake, preventing sufficient air supply during combustion, which easily leads to incomplete combustion. 3. Insufficient compression: One of the conditions for fuel combustion is a certain level of pressure in the combustion environment. However, if components like valves and piston rings are worn, it can lead to insufficient compression pressure, failing to meet the required combustion pressure, thereby worsening the combustion conditions.
I noticed my car's fuel burns out really fast, running out quickly on long trips. The main issue is my poor driving habits—frequently hitting the gas and brakes hard in congested city traffic, forcing the engine to gulp fuel to respond. The stop-and-go driving makes it even worse. Plus, I always crank the AC to max, making the engine work harder and consume more fuel, even when it's hot outside. My tire pressure is also too low, increasing friction and resistance, which spikes fuel consumption. Shifting gears too early or too late also reduces engine efficiency. Learning to accelerate smoothly, brake reasonably, and closing windows to reduce drag can save a lot of fuel. Regularly using a mobile app to monitor driving habits and adjusting tire pressure to the standard value can extend the mileage per tank.
I think the issue of poor fuel efficiency is mostly due to inadequate maintenance. When my car's air filter is clogged with dust, the engine can't intake enough air, so it compensates by burning more fuel, and the power output suffers. If the spark plugs are worn out or the gap is incorrect, the ignition becomes unreliable, leading to incomplete fuel combustion—evidenced by black smoke from the exhaust. A clogged fuel filter or impurities in the tank also reduce combustion efficiency. Severely worn tires or low tire pressure increase rolling resistance, which also wastes fuel. Taking the time to clean the air filter, replace the spark plugs and check their gaps, and using high-quality fuel instead of cheap, low-grade options can naturally lower fuel consumption. Regularly consulting the car's manual and performing simple maintenance based on mileage can save a lot of money in the long run.
